A three-component condensation of 2-unsubstituted imidazole N-oxides, 3-ketonitriles, and aldehydes is described. The reaction proceeds via sequential Knoevenagel condensation/Michael addition under mild, catalyst-free conditions with various substrates. Furthermore, the corresponding...
A three-component condensation of 2-unsubstituted imidazole N-oxides, 3-ketonitriles, and aldehydes is described. The reaction proceeds via sequential Knoevenagel condensation/Michael addition under mild, catalyst-free conditions with various substrates. Furthermore, the corresponding...
A new approach for the preparation of a variety of 3-arylated 2-furoic acid derivatives has been developed. The approach involves selective Ru-catalyzed C3-H arylation of the furan moiety of readily available 2-furoyl-1-methylimidazole (using imidazole as a removable N-donor directing group), subsequent N-methylation, and nucleophilic substitution of the imidazole moiety with N, O, S, and C nucleophiles.
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